Climate and average weather in Copiapó

In Copiapó, the summers are warm, dry, and clear and the winters are mild and clear.

Best: early January to late December

Over the course of the year, the temperature in Copiapó typically varies from 6°C to 26°C, and is rarely below 2°C or above 28°C. January is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Copiapó for warm-weather activities is from early January to late December.

Hottest
Jan
26°
Coldest
Jul
Wettest
May
8 mm
Driest
Jan
0 mm
Rain / yr
32 mm
5 wet days
Daylight
10.3–13.7 h
shortest–longest
Elevation
381 m
27.4°S
Clearest
Mar
7% cloud

Copiapó is city in northern Chile.

Air quality
Moderate
PM2.5 12.3 µg/m³ · 2019
Density
3,769/km²
people per km²
Founded
1744

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Copiapó weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early January to late December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Copiapó, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Copiapó stay fairly even through the year, without a distinct hot or cool season. The warmest month is January, with an average high of 26°C and low of 16°C; the coolest is July, with an average low of 6°C and high of 20°C.

Days typically run about 12°C warmer than nights, with the widest day–night swing (around 14°C) in July.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2616
Feb2616
Mar2515
Apr2313
May229
Jun207
Jul206
Aug218
Sep2210
Oct2312
Nov2414
Dec2515

Average hourly temperature in Copiapó

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on January afternoons, near 26°C, and coldest before dawn in July, near C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Copiapó weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 16°0013.59.2
Feb26° / 16°00.1139.3
Mar25° / 15°50.312.29.5
Apr23° / 13°20.311.49.5
May22° / 8110.78.6
Jun20° / 60.810.38.3
Jul20° / 61.210.48.3
Aug21° / 30.6118.7
Sep22° / 10°20.411.89.1
Oct23° / 12°00.212.79.5
Nov24° / 14°00.113.49.7
Dec25° / 15°10.113.79.5

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Copiapó gets about 32 mm of precipitation a year. On a typical day the chance of rain is mostly dry, and that barely changes with the seasons — rain is spread fairly evenly through the year.

May is the wettest month by volume, with 8 mm over about 1 wet days; January is the driest, with 0 mm.

0%10%20%JanFebMarAprMayJunJulAugSepOctNovDecmostly drysome rainJul 11 · 4%Jan 1 · 0%
Rain on a day (%)Rain days
Jan00
Feb00
Mar10
Apr10
May31
Jun31
Jul41
Aug21
Sep10
Oct00
Nov00
Dec00

Monthly rainfall

Over a full year, Copiapó collects about 32 mm of rain across 5 wet days — roughly 3 mm in an average month.

It doesn’t fall evenly. May is the wettest month with 8 mm, while January is the driest at just 0 mm. The three wettest months alone bring about 60% of the year’s total.

025JanFebMarAprMayJunJulAugSepOctNovDec005286632001
Rainfall (mm)Rain days
Jan00
Feb00
Mar50
Apr20
May81
Jun61
Jul61
Aug31
Sep20
Oct00
Nov00
Dec10

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Copiapó, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around September 5 and lasts for 7.6 months, ending around April 23. The clearest month is March, when the sky is clear, mostly clear, or partly cloudy 96% of the time on average.

The cloudier part of the year begins around April 24 and lasts for 4.4 months, ending around September 4. The cloudiest month is June, when it is overcast or mostly cloudy 22% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecMar 4 · 97%Jun 12 · 76%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan937
Feb955
Mar964
Apr937
May8119
Jun7822
Jul8317
Aug8713
Sep928
Oct937
Nov955
Dec955

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around January 1, brings about 13 h 42 min of light; the shortest, around June 6, only 10 h 18 min — a swing of roughly 3 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.57:048:37
Feb13.07:278:25
Mar12.27:457:57
Apr11.48:017:22
May10.78:186:57
Jun10.38:336:50
Jul10.48:347:00
Aug11.08:157:16
Sep11.87:407:31
Oct12.77:067:46
Nov13.46:458:08
Dec13.76:468:29

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Copiapó averages about 26 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 20 and 29 days.

The sunnier stretch runs 7.4 months, from around Sep 12 to Apr 23. The sunniest month is March, with roughly 28 sunny days (brilliant).

The greyest month is May, down near 22 sunny days — about 24% fewer than the March peak.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightbrilliantMar 129 daysMay 3020 days
Sunny daysSky
Jan27Brilliant
Feb26Brilliant
Mar29Brilliant
Apr26Brilliant
May22Bright
Jun21Bright
Jul23Brilliant
Aug25Brilliant
Sep25Brilliant
Oct27Brilliant
Nov28Brilliant
Dec28Brilliant

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Copiapó, the air stays dry or comfortable essentially all year. Even in January, the muggiest month, it feels humid or worse only about 0% of the time — humidity is not something you need to plan around here.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecdry
Dry (%)Comfortable (%)
Jan982
Feb973
Mar982
Apr991
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Copiapó is steady company: average speeds sit near 7 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeJan 10 · 8 km/hApr 28 · 6 km/h
Wind speed (km/h)Feels
Jan8calm
Feb7calm
Mar7calm
Apr6calm
May6calm
Jun6calm
Jul7calm
Aug7calm
Sep7calm
Oct7calm
Nov7calm
Dec8calm

Best time to visit Copiapó

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Copiapó throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late December, Copiapó is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, Copiapó suits general outdoor tourist activities for most of the year, with a peak score in the first week of November.

0246810JanFebMarAprMayJunJulAugSepOctNovDectravel scoretemperaturecloudsprecipitationNov 5 · 9.7

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan9.3ideal
Feb9.3ideal
Mar9.5ideal
Apr9.5ideal
May8.6ideal
Jun8.3ideal
Jul8.3ideal
Aug8.7ideal
Sep9.1ideal
Oct9.5ideal
Nov9.7ideal
Dec9.5ideal

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Copiapó for hot-weather activities is from early October to late April, with a peak score in the last week of January.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJan 30 · 8.8

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Copiapó, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around January (highs near 26°C), the essentials are light clothes and sun protection. In the cold season around July (highs near 20°C), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Copiapó sees daytime highs around 26°C and nights near 16°C. Pack sun protection. Worth having: light clothes.

Sea temperature near Copiapó

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 54 km away) is warmest in February at about 19°C and coldest in August near 14°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

12°14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan19Cool
Feb19Cool
Mar18Cool
Apr17Cool
May16Cool
Jun15Cool
Jul15Bracing
Aug14Bracing
Sep14Bracing
Oct15Bracing
Nov16Cool
Dec17Cool

UV index (midday) in Copiapó by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Copiapó peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 5 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeHighModerateHighVery highExtremeJan 20UV 15Jun 21UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr7Very high
May6High
Jun5Moderate
Jul5Moderate
Aug7High
Sep9Very high
Oct12Extreme
Nov13Extreme
Dec14Extreme

Average hourly UV index in Copiapó

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in January the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan97
Feb97
Mar86
Apr6.53.5
May50
Jun40
Jul4.50
Aug62.5
Sep74.5
Oct8.56
Nov8.56.5
Dec97

Air quality in Copiapó by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Copiapó is worst in August — around 17 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (January, 7 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Copiapó's WHO annual average of 12.3 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1217 µg/m³Jan 197 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar10Good
Apr16Moderate
May16Moderate
Jun14Moderate
Jul16Moderate
Aug17Moderate
Sep14Moderate
Oct13Moderate
Nov9Good
Dec8Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Copiapó is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun990
Jul980
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Copiapó banks about 2,683 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan337
Feb304
Mar309
Apr241
May165
Jun100
Jul85
Aug134
Sep184
Oct243
Nov270
Dec310

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Copiapó receives about 6.9 kWh/m² a day of solar energy on average — intense — with a clear seasonal swing between 4.0 and 9.4 kWh/m².

The brighter stretch of the year lasts 6.2 months, from around Sep 18 to Mar 25. The brightest month is December, averaging about 9.4 kWh/m² (intense).

The dimmest month is June, down near 4.0 kWh/m² — roughly 57% less than the December peak.

01234567891011JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 139.4 kWhJun 204.0 kWh
Solar energy (kWh/m²)Level
Jan9.1Intense
Feb8.4Intense
Mar7.3Intense
Apr5.9Bright
May4.6Bright
Jun4.0Bright
Jul4.3Bright
Aug5.3Bright
Sep6.8Intense
Oct8.1Intense
Nov9.1Intense
Dec9.4Intense

Where is Copiapó?

Copiapó sits at 27.4°S, 70.3°W, 381 m above sea level, in Chile. The nearest listed city is Caldera, 59 km away.

La SerenaVicuñaCoquimboBelénChilecitoOvalle

Topography around Copiapó

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Copiapó.

Within 3 km, the terrain around Copiapó has significant variations in elevation — a maximum elevation change of 504 m around an average of 464 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,341 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,668 m.

The land around Copiapó is covered by bare terrain (55%) and artificial surfaces (43%) within 3 km, bare terrain (94%) within 16 km, and bare terrain (88%) within 80 km.

3 km
504 m
16 km
1,341 m
80 km
4,668 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Caldera 59 km · Vallenar 141 km · La Serena 296 km · Vicuña 299 km · Coquimbo 304 km · Belén 328 km · Chilecito 342 km · Ovalle 369 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Copiapó (-27.3674°, -70.3322°, elevation 381 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).